Phoenix (/ˈfiːnɪks/ FEE-niks; Navajo: Hoozdo; Spanish: Fénix or Fínix,[citation needed] Walapai: Banyà:nyuwá) is the capital and most populous city of the U.S. state
of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the only U.S. state capital with a population of more than one million residents.
Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, which in turn is part of the Salt River Valley. The metropolitan area is the 11th largest by population in the United States, with approximately 4.85 million people as of 2020. Phoenix, the seat of Maricopa County, has the largest area of all cities in Arizona, with an area of 517.9 square miles (1,341 km2), and is also the 11th largest city by area in the United States. It is the largest metropolitan area, both by population and size, of the Arizona Sun Corridor megaregion.
Seni District, which belongs to Naqu City, Tibet Autonomous region, is the political, economic, cultural, transportation, information and communication center of Naqu City. Seni District is bordered by Dangxiong County to the south, Nierong County and Ando County to the north, Biru County and Jiali County to the east, and Bangor County to the west. Xeni District is located in north-central Tibet, between Mount Tanggula and Nianqing Tanggula Mountains, both belong to the northern Tibetan plateau, with an average altitude of more than 4500 meters and a maximum elevation of 6500 meters. The maximum distance from east to west is 233km, and the maximum distance from north to south is 185km, with a total area of 16195 square kilometers. In 2016, the total population of Xeni District was 144116. In 2016, Seni District achieved a GDP of 2.267 billion yuan. In August 2011, Naqu County (Seni District) was awarded the hometown of Chinese specialty (yak).